It would be best for the world if you were correct. However until the Indian Air Force is sufficiently upgraded, the Chinese have an overwhelming advantage in the air. That alone will be decisive in a conventional battle between two armies. India cooperates with Israel and Britain but they simply have not allocated the resources necessary to upgrade their Air Force adequately.
Go wide around the Chinese troops and bomb them as they return to India. Destroy the routes. Destroy their supply chain.
In and out before the Chinese overwhelm them.
I agree that India’s air upgrades have been slow (to be kind), and don’t doubt that they will suffer losses in that arena - including an impact to ground operations.
However, I feel strongly that it will come down to which country has the population willing to deal with a longer conflict if that results.
Given that 20% of the Chinese military are single children - there will be a huge upswelling of anger from the population if it goes on too long and families are wiped from posterity. Also part of why they finally turned away from the policy.
No nation has ever had that kind of situation before, it’ll make our protests look like a parade if the passions get lit. The rise of the peasant/everyday man is how every Chinese power transition has occurred. The politburo won’t risk that - again my opinion - and would not allow the conflict to go for very long before resettling at whatever the new lines might be at the time... if they take 1 inch they will claim it as a victory to their population - while the rest of the world will know the truth.